| Number of effect sizes | (I2)1 | P2 | RR (95%CI)3 | P-be4 | |
---|---|---|---|---|---|---|
Methamphetamine based on multiple sex partner | ||||||
 Overall | 13 | 96.64 |  < 0.001 | 3.70 (2.04–6.70) |  | |
 Number of Sexual Partners | 1 to 3 | 5 | 90.66 |  < 0.001 | 2.82 (1.30—6.11) |  < 0.001 |
4 to 5 | 4 | 86.63 |  < 0.001 | 2.98 (1.19 -7.47) | ||
6 or more | 4 | 90.10 |  < 0.001 | 5.89 (2.37–14.65) | ||
 Country | USA | 10 | 97.35 |  < 0.001 | 3.77 (1.89 -7.53) |  < 0.001 |
Non-US countries | 3 | 55.09 | 0.110 | 3.17 (1.26—8.00) | ||
 Sample size | Under 1000 Sample | 5 | 85.72 |  < 0.001 | 2.52 (1.25–5.09) |  < 0.001 |
1000 Sample or above | 8 | 85.43 |  < 0.001 | 4.44 (2.66–7.40) | ||
 Age | 26–33 | 7 | 94.64 |  < 0.001 | 2.55 (1.31–4.93) |  < 0.001 |
Greater than 33 | 6 | 89.60 |  < 0.001 | 5.38 (2.65–10.92) |